EDS1232AATA-75L-E datasheet(6/53 Pages) ELPIDA

Part #	EDS1232AATA-75L-E

Description	128M bits SDRAM (4M words x 32 bits)

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Manufacturer	ELPIDA [Elpida Memory]

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EDS1232AATA

Data Sheet E0386E40 (Ver. 4.0)

6

Pin Capacitance (TA = 25°C, f = 1MHz)

Parameter

Symbol Pins

min.

typ.

max.

Unit

Note

Input capacitance

CI1

Address

2.5

—

4.0

pF

CI2

CLK, CKE, /CS, /RAS,

/CAS, /WE, DQM

2.5

—

4.0

pF

Data input/output

capacitance

CI/O

DQ

4.0

—

6.5

pF

AC Characteristics (TA = 0 to +70

°°°°C, VDD, VDDQ = 3.3V±±±±0.3V, VSS, VSSQ = 0V)

-60

-75

Parameter

Symbol

min.

max.

min.

max.

Unit

Note

System clock cycle time

(CL = 2)

tCK

7.5

—

10

—

ns

(CL = 3)

tCK

6

—

7.5

—

ns

CLK high pulse width

tCH

2.5

—

2.5

—

ns

CLK low pulse width

tCL

2.5

—

2.5

—

ns

Access time from CLK

tAC

—

5.4

—

5.4

ns

Data-out hold time

tOH

2

—

2

—

ns

CLK to Data-out low impedance

tLZ

0

—

0

—

ns

CLK to Data-out high impedance

tHZ

2

5.4

2

5.4

ns

Input setup time

tSI

1.5

—

1.5

—

ns

Input hold time

tHI

0.8

—

0.8

—

ns

CKE setup time (Power down exit)

tCKSP

1.5

—

1.5

—

ns

ACT to REF/ACT command period

(operation)

tRC

60



67.5



ns

(refresh)

tRC

60



67.5



ns

Active to Precharge command period

tRAS

42

120000

45

120000

ns

Active command to column command

(same bank)

tRCD

15



20



ns

Precharge to active command period

tRP

15



20



ns

Write recovery or data-in to precharge

lead time

tDPL

12



15



ns

Last data into active latency

tDAL

2CLK +

15ns



2CLK +

20ns



Active (a) to Active (b) command period

tRRD

12



15



ns

Mode register set cycle time

tRSC

2



2



CLK

Transition time (rise and fall)

tT

0.5

30

0.5

30

ns

Refresh period

(4096 refresh cycles)

tREF

—

64

—

64

ms

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EDS1232AATA-75L-E Datasheet(PDF) 6 Page - Elpida Memory

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